JP2009248736A - Vehicular door trim - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcement structure in a waist part of a trim body, preventing the occurrence of a short-shot symptom during molding and allowing a sound absorbing material such as nonwoven cloth tape to be firmly bonded by forming an abutment rib attached to a waist garnish into a shape where the height dimension is low even when the waist garnish is used for attaching an inner seal. <P>SOLUTION: A recess part 8 opening to a trim body 2 side is formed at the waist garnish 6, the abutment rib 9 against a door body 1 is formed at an outer sidewall surface 8b-1 at a bottom wall part 8b of the recess part 8, and a reinforcement rib 3-1 is formed to stand on the waist part 3 of the trim body 2, and the reinforcement rib 3-1 is housed in the recess part 8 formed at the waist garnish 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an automobile door trim for beautifying the compartment side of a door body of an automobile.

  As shown in FIG. 1, this type of automobile door trim generally has a trim main body 2 for beautifying the passenger compartment side of the door main body 1, and an armrest portion 2-1 is inflated substantially at the center of the trim main body 2. In addition to being formed, the pocket body 2-2 or the speaker grille 2-3 is provided on the lower side of the trim main body 2.

  Further, on the outer side of the waist portion 3 constituting the upper side of the trim body 2, rain water, noise and the like are prevented from entering the vehicle interior from the door glass 4 that is mounted on the door body 1 so as to be movable up and down. An inner seal 5 is attached (see FIG. 6).

  When the shape of the door main body 1 or the trim main body 2 permits, the inner seal 5 is directly attached to the trim main body 2 by forming an attachment flange portion (not shown) in the waist portion 3. However, if the mounting flange portion cannot be formed integrally with the waist portion due to die cutting restrictions of the molding die, a separate garnish 6 attached to the waist portion 3 is interposed. I am trying to attach it.

  The waist garnish 6 is generally formed of a resin molded product, has a shape that extends in the vehicle front-rear direction of the waist portion 3 of the trim body 2, and is provided on the door body 1 side. The composition must also be considered.

  Therefore, as shown in FIG. 7, the conventional waist garnish 6 is formed so as to bend in a substantially semicircular shape in the vehicle width direction of the automobile and extend in the front-rear direction of the automobile, and is formed on one end side. The welded boss 3a formed to protrude from the vehicle exterior side of the waist 3 is fitted into the hole 6a, and the portion projected from the mounting hole 6a of the welded boss 3a is crimped by high frequency welding or the like to be attached to the waist 3 It is supposed to be.

  Further, when the waist garnish 6 is mounted on the waist portion 3, the waist garnish 6 is supported by the door body 1 by bringing a plurality of abutment ribs 9 formed on the inner wall thereof into contact with the door body 1 side. (See FIG. 6).

And in order to prevent generation | occurrence | production of unusual sounds, such as a hitting sound and a rubbing sound, when the contact rib 9 contact | abutted to the door main body 1, as shown in FIG. This is configured by attaching a sound absorbing material 7 such as the above (see Patent Document 1).
Japanese Utility Model Publication No. 7-78036

  Therefore, the waist garnish 6 is elongated in the longitudinal direction of the automobile and is formed in a uniform cross-sectional shape such as a substantially semicircular shape. For example, since it is close to the waist portion 3 that is directly exposed to direct sunlight, it can be said that it is a component that is easily thermally deformed.

  Further, the abutment rib 9 provided on the waist garnish 6 needs to have a large height in order to be brought into contact with the door body 1, and for this purpose, the abutment rib on the molding die side such as injection molding is formed. The concave part has to have a deep shape, and there is a risk that the molten resin will not reach the tip of the concave part where the rib is formed, causing a short shot (thickness phenomenon), and because the height dimension is high. The rigidity of the abutting rib 9 itself is lowered, and there is a possibility that the occupant cannot sufficiently withstand the load generated when the occupant puts his elbow on the waist portion 3 of the trim body 2.

  In addition, the sound absorbing material 7 such as a non-woven tape interposed between the abutment rib 9 and the door body 1 must be attached to the tip end portion of the abutment rib 9 so as to be folded at a steep angle. It can be said that the return force from the bent state to the original shape always works, and it is easy to peel off from the contact rib 9 by this return force.

  Further, since the waist garnish 6 is attached to the waist portion 3 of the trim body 2, the waist garnish 6 itself cannot be provided with a reinforcing rib or the like, and the trim body 2 itself has low rigidity. There is a risk of it.

  Therefore, as a first object of the present invention, by making the abutment rib provided on the waist garnish into a shape having a low height, a sound-absorbing material such as a non-woven tape is firmly stuck without causing a short shot phenomenon during molding. It provides automotive door trim that is made possible.

  In addition, as a second object of the present invention, even if a waist garnish is used to attach the inner seal, a reinforcement structure can be applied to the waist portion of the trim body, and a highly rigid structure of the trim body can be achieved. It provides a door trim for automobiles that has been made possible.

  In order to achieve the first object, an automobile door trim according to the present invention has a waist garnish attached to a waist portion of a trim body, and an inner seal is attached to the waist garnish. In the above, a recess opening to the trim main body side is formed in the waste garnish, and an abutment rib for the door main body is formed on the outer wall surface of the bottom wall portion of the recess.

  Because of having such a configuration, by forming a recess that opens to the trim body side in the waist garnish, it is possible to increase the cross-sectional rigidity of the waist garnish, and to make the configuration difficult to deform depending on the molding conditions and usage environment. it can.

  In addition, the abutment rib provided on the waist garnish is formed on the outer wall surface of the bottom wall portion of the recess, so that it is formed on the part that is close to the door body, and the height dimension can be made low. In addition, it does not cause a short shot phenomenon at the time of molding, and it has a structure that can sufficiently withstand the load generated when the occupant places an elbow on the waist part of the trim body by increasing the rigidity due to the presence of the recess. be able to.

  Further, since the abutment rib can be formed in a shape having a low height on the outer wall surface of the bottom wall portion of the recess, a sound absorbing material such as a nonwoven fabric tape is placed on the outer wall surface of the bottom wall portion of the recess so as to straddle the abutment rib. Even if affixed, the sound-absorbing material can be affixed without being folded back at a steep angle, and the sound-absorbing material can be affixed to a relatively flat portion on the outer wall surface of the bottom wall. It is possible to sufficiently suppress the peeling phenomenon caused by the return force generated on the material.

  Further, the present invention is characterized in that a reinforcing rib is erected and formed in the waist portion of the trim body, and the reinforcing rib is accommodated in a recess formed in the waist garnish.

  With such a configuration, the reinforcing ribs standingly formed on the waist part are accommodated in the recesses formed by the waist garnish, so even if the waist garnish is attached to the waist part, it is disturbed by the waist garnish. It can be provided without any problem, and the strength and rigidity of the waist portion can be obtained.

  In the present invention, since the waist garnish is formed with a recess opening on the trim body side, the cross-sectional rigidity of the waist garnish can be increased, and it can be configured to be difficult to deform depending on molding conditions and use environment. The abutment rib provided on the waist garnish is formed on the outer wall surface of the bottom wall portion of the recess, so that it is formed on the part closer to the door body, and the shape having a low height is reduced. It has a structure that does not cause the short shot phenomenon at the time of molding and increases the rigidity due to the presence of the recess, and can sufficiently withstand the load generated when the occupant puts his elbow on the waist of the trim body. In addition, since the abutment rib can be formed in a low shape on the outer wall surface of the bottom wall portion of the recess, the nonwoven fabric tape or the like Since the sound absorbing material is applied to the outer wall surface of the bottom wall portion of the recess so as to straddle the abutting rib, the sound absorbing material can be attached without folding back at a steep angle, and the sound absorbing material can be attached to the bottom wall portion. It is possible to paste up to a relatively flat portion on the outer wall surface, and to absorb the restoring force generated by the sound-absorbing material after pasting and sufficiently suppress the peeling phenomenon.

  Further, according to the present invention, the reinforcing rib is erected on the waist portion of the trim body, and the reinforcing rib is accommodated in a recess formed in the waist garnish. Even if the waist garnish is attached to the waist part, it can be provided without being obstructed by the waist garnish, and the waist part has strength and rigidity. be able to.

  Embodiments of an automobile door trim according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view depicting a state in which a general automobile door trim is mounted on a door body, drawn from the passenger compartment side, and FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 when the first embodiment according to the present invention is adopted. FIG. 3 is a perspective view depicting a portion of the waist garnish according to the first embodiment of the present invention, and FIG. In the following description, parts corresponding to the prior art will be described with the same reference numerals.

  First, according to FIG. 1, the automobile door trim has a trim main body 2 for beautifying the passenger compartment side of the door main body 1, and an armrest portion 2-1 bulges out at a substantially central portion of the trim main body 2. The pocket body 2-2 or the speaker grille 2-3 is provided on the lower side of the trim body 2.

  Further, as clearly shown in FIG. 2, the upper portion of the trim body 2 is formed to bend outwardly from the vehicle to form a waist portion 3, and a waist garnish 6 is attached to the waist portion 3. .

  The waist garnish 6 is formed of a resin molded product, and as shown in FIG. 3, the waist garnish 6 is bent in a substantially semicircular shape in the vehicle width direction of the automobile and extends in the front-rear direction of the automobile. A plurality of attachment holes (not shown) formed on the side 6-1 side are fitted with welding bosses (not shown) protruding from the outside of the waist portion 3 and protrude from the attachment holes 6a of the welding bosses. It is configured to be attached to the waist portion 3 by caulking the part thus formed by high frequency welding or the like.

  Between the side 6-1 side of the west garnish 6 and the top bent portion 6-2, a plurality of concave portions 8 are formed at positions separated from each other.

  The recess 8 is open on the upper side and one side 6-1 side of the waist garnish 6, that is, on the trim body 2 side, and has a side wall portion 8 a in the front-rear direction of the automobile and the other side 6-3 direction of the west garnish 6. It is formed at the bottom and has a bottom wall 8b.

  On the outer wall surface 8b-1 of the bottom wall portion 8b, as shown in FIG. 4, a contact rib 9 for the door body 1 having a convex shape is formed. The abutment rib 9 is formed so as to extend in the vehicle width direction of the automobile, and when the waist garnish 6 is attached to the waist portion 3, the abutment rib 9 is brought into contact with the door body 1 side, whereby the waist garnish 6 is brought into contact with the door body. 1 is configured to be supported.

  And the sound absorbing material 7 comprised from a nonwoven fabric etc. is affixed on the outer side wall surface 8b-1 so that the striking rib 9 may be straddled, and the contacting rib 9 contact | abutted to the door main body 1 with the sound absorbing material 7. Thus, it is configured to prevent the generation of abnormal sounds such as a hitting sound and a rubbing sound.

  In addition, an inner seal 5 is attached to the other side 6-3 of the waist garnish 6 to prevent rainwater, noise, and the like from entering the vehicle interior from the door glass 4 that is mounted on the door body 1 so as to be movable up and down. (See FIG. 2).

  In order to attach the inner seal 5 to the waist garnish 6, a plurality of attachment pieces 5 a are formed on the inner seal 5, and the attachment holes 6 a are formed on the other side 6-3 of the waist garnish 6. It is configured to be fitted while being elastically deformed.

  Further, reinforcing ribs 3-1 are erected on the waist portion 3 of the trim body 2 at positions facing each other so as to be accommodated in the recess 8 of the waist garnish 6.

  When configured as described above, the waist garnish 6 can be improved in cross-sectional rigidity due to the formation of the recess 8 that opens on the trim body 2 side, and is configured to be difficult to deform depending on the molding conditions and use environment. Can do.

  In addition, the abutment rib 9 provided on the waist garnish 6 is formed on the outer wall surface 8b-1 of the bottom wall portion 8b of the recess 8 so as to be formed at a portion close to the door body 1, and thus has a height dimension. Can be made low in shape, does not cause a short shot phenomenon at the time of molding, and has a high rigidity, so that it is sufficient for a load generated when an occupant places an elbow on the waist portion 3 of the trim body 2. A structure that can be withstood.

  Further, since the abutting rib 9 can be formed in a shape having a low height on the outer wall surface 8b-1 of the bottom wall portion 8b of the recessed portion 8, the sound absorbing material 7 such as a non-woven tape is straddled over the abutting rib 9 to form the recessed portion 8. Even if the sound absorbing material 7 is affixed to the outer wall surface 8b-1 of the bottom wall portion 8b, the sound absorbing material 7 can be affixed without being folded back at a steep angle, and the sound absorbing material 7 is relatively flat in the bottom wall portion 8b. It is possible to affix to the outer wall surface 8b-1 configured as described above, and it is possible to sufficiently suppress the peeling phenomenon due to the occurrence of restoring force in the sound absorbing material 7 after the affixing.

  Even if the reinforcing rib 3-1 is formed upright on the waist 3 of the trim body 2, the reinforcing rib 3-1 can be accommodated in the recess 8 formed in the waist garnish 6. Even if the waist garnish 6 is attached, it can be provided without being obstructed by the waist garnish 6, and the strength and rigidity of the waist portion 3 can be obtained.

  Next, another embodiment according to the present invention will be described with reference to FIG.

  The embodiment shown in FIG. 5 is different from the above embodiment in that the contact rib 9 formed on the outer wall surface 8b-1 of the bottom wall portion 8b of the recess 8 is formed in a bead shape, and the other configurations are the same. It is what you are doing.

  The present invention can increase the rigidity of the waist garnish itself and the rigidity of the contact ribs to the door trim body by having the recesses, and makes it difficult to peel off the sound absorbing material attached to the contact ribs. By being present, a reinforcing rib can be formed in the waist part, and it can contribute to increased rigidity, so that it is suitable for a door trim for an automobile for beautifying the compartment side of the automobile door body. I can say that.

It is the perspective view which drawn the state which mounted | wore the door main body with the common automotive door trim from the compartment side. It is AA sectional drawing of FIG. 1 at the time of employ | adopting the 1st Example which concerns on this invention. It is the perspective view which drawn a part of waist garnish concerning the 1st example of the present invention. It is the perspective view drawn from the B arrow direction of FIG. It is the fragmentary perspective view drawn from the arrow direction similar to FIG. 3 of the West garnish which employ | adopted the 2nd Example of this invention. It is the disassembled perspective view which drawn a part of conventional waist garnish with the waist part of the door main body. Similarly, it is the perspective view drawn from the lower surface side of a West garnish.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door main body 2 Trim main body 3 Waist part 3-1 Reinforcement rib 5 Inner seal 8 Recessed part 8b Bottom wall part 8b-1 Outer wall surface 9 Applying rib

Claims (2)

  In the automobile door trim in which the waist garnish is attached to the waist portion of the trim body and the inner seal is attached to the waist garnish, a recess that opens to the trim body side is formed in the waist garnish, A door trim for an automobile, wherein a contact rib for the door body is formed on an outer wall surface of the bottom wall portion of the recess. The automobile door trim according to claim 1, wherein a reinforcing rib is formed upright on a waist portion of the trim body, and the reinforcing rib is accommodated in a recess formed in the waist garnish.